Work Principle: Sound Sensor / Voice Induction Lamp: The lamp will light up continuously for approximately 1 minute after power is connected, then turn off automatically. Please wait around 15 seconds for the sensing mode to activate. Feature: - Auto PIR motion detection or sound sensor for light on/off - Durable and energy-saving - High sensitivity, bright illumination, and low power consumption - Suitable for corridor, pathway, stair, garden, yard, etc. Specification: - Light Color: White - Connector type: E27 - Detection range: 5M - Detection angle: Approximately 120 degrees - Power: 3W/5W/7W/9W/12W (Sound Sensor) - Voltage: AC200V–240V Operation Instruction: 1. Install the bulb near stairs, preferably with the bulb head facing the exit/entrance. 2. Keep the bulb away from heaters, air conditioners, refrigerators, stoves, or other high-temperature areas, as heat sources may trigger false activation. 3. Avoid placing shields, furniture, or large objects near the bulb. 4. Do not point the bulb toward windows to prevent interference from external heat or light, which may cause unintended activation. 5. Avoid installing the bulb near gates or airways. Troubleshooting: 1. After installation, the bulb may turn on and off automatically. This could be due to animal movement, placement in a warm area, or incorrect installation angle. 2. If the bulb turns on every 8 seconds and off every 30 seconds repeatedly, check for nearby movement of people or animals. Alternatively, test the bulb in another room to confirm functionality.